Facebook Posts #200 Insufficient Permission
If you are getting this error it means, either you do not have permission to post on this page now or you have not assigned us permission to share
We suggest you follow the steps below.
Log in to your Facebook account
Go to Settings
Click on Apps
Search for ContentStudio and remove this application. Then do re-authentication in the ContentStudio to add your page again. It will again start the authentication process.
Make sure this time, you accept all the permissions to avoid this error.